document.write( "Question 701022: x + 3y = −8,\r
\n" ); document.write( "\n" ); document.write( "4x − 3y = 23 \n" ); document.write( "
Algebra.Com's Answer #432149 by checkley79(3341)\"\" \"About 
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x + 3y = −8
\n" ); document.write( "x=-3y-8 replace x with (-3y-8) in the second equation & solve for y.
\n" ); document.write( "4x − 3y = 23
\n" ); document.write( "4(-3y-8)-3y=23
\n" ); document.write( "-12y-32-3y=23
\n" ); document.write( "-15y=23+32
\n" ); document.write( "-15y=55
\n" ); document.write( "y=55/-15
\n" ); document.write( "y=-11/3 ans.
\n" ); document.write( "x+3(-11/3)=-8
\n" ); document.write( "x-33/3=-8
\n" ); document.write( "x-11=-8
\n" ); document.write( "x=-8+11
\n" ); document.write( "x=3 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "4*3-3(-11/3)=23
\n" ); document.write( "12+33/3=23
\n" ); document.write( "12+11=23
\n" ); document.write( "23=23 \n" ); document.write( "
\n" );